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Mental Subtraction Worksheet for Class 2 and 3

Mental maths lesson 7: Subtract 2-digit numbers left to right · Set 461 · 40 questions
TalentJR

How to do it in your head (Tens first): Keep the first number as it is. Take away the tens of the second number. Take away the ones (bridge back through a ten if you need to).

NameDateTime takenScore ___ / 40
  1. 1.70 − 25 =
  2. 2.78 − 13 =
  3. 3.61 − 31 =
  4. 4.99 − 68 =
  5. 5.66 − 47 =
  6. 6.90 − 68 =
  7. 7.58 − 38 =
  8. 8.87 − 71 =
  9. 9.82 − 18 =
  10. 10.91 − 13 =
  11. 11.94 − 81 =
  12. 12.70 − 61 =
  13. 13.99 − 74 =
  14. 14.97 − 68 =
  15. 15.68 − 13 =
  16. 16.64 − 48 =
  17. 17.83 − 58 =
  18. 18.98 − 68 =
  19. 19.62 − 36 =
  20. 20.89 − 24 =
  21. 21.91 − 46 =
  22. 22.56 − 41 =
  23. 23.72 − 46 =
  24. 24.98 − 24 =
  25. 25.54 − 31 =
  26. 26.78 − 49 =
  27. 27.99 − 72 =
  28. 28.63 − 22 =
  29. 29.62 − 34 =
  30. 30.88 − 28 =
  31. 31.91 − 21 =
  32. 32.53 − 17 =
  33. 33.90 − 24 =
  34. 34.66 − 51 =
  35. 35.84 − 37 =
  36. 36.55 − 28 =
  37. 37.90 − 72 =
  38. 38.78 − 53 =
  39. 39.60 − 19 =
  40. 40.76 − 61 =

Answer key

  1. 45
  2. 65
  3. 30
  4. 31
  5. 19
  6. 22
  7. 20
  8. 16
  9. 64
  10. 78
  11. 13
  12. 9
  13. 25
  14. 29
  15. 55
  16. 16
  17. 25
  18. 30
  19. 26
  20. 65
  21. 45
  22. 15
  23. 26
  24. 74
  25. 23
  26. 29
  27. 27
  28. 41
  29. 28
  30. 60
  31. 70
  32. 36
  33. 66
  34. 15
  35. 47
  36. 27
  37. 18
  38. 25
  39. 41
  40. 15

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